Blind-slat operator



(ModeL) W. H. KEERAN.

BLIND SLAT OPERATOR.

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or Patented May 20, 1884.

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WVILLIAM H. KEERAN, OF AUBURN, INDIANA.

BLlND -SLAT OPERATOR.

SPECIFICATION forming part of Letters Patent 1Y0. 298,860, dated May 20,1884..

Application filed Septembcr18, 1883. (ModeL) To all whom it mayconcern.-

Be it known that I, WILLIAM H. KEERAN, a citizen of the United States,residing at Auburn, in the county of De Kalb and State of Indiana,'haveinvented certain new and use ful Improvements in Blind Slat Operators;and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to the letters and figures ofreference marked thereon, which form a part of this specification.

My invention relates to improvements in blind-slat operators; and itconsists in the construction, combination, and arrangement of theseveral parts, as will be hereinafter fully described, and pointed outin the claims.

In, the drawings, Figure 1 is an elevation from the inner side of awindow having my improvements attached. Fig. 2 is a detached side viewof the window framing, shutter, 8w. Fig. 3 is a vertical section onabout line a; a, Fig. 1. Fig. 4 is a detail view of the operatingdevices; and Fig. 5 is a detail view of the slat, all of which will bedescribed. In illustrating my improvements I have omitted the sashes inorder to show more clearly the novel features.

The casing A is provided with the usual side rails, c a cf, the rails toa forming a way for the upper sash, and the rails a c a similar way forthe lower sash, as will be seen in the drawings.

The shutters B are hinged in the ordinary manner, and are provided withthe slats b,pivoted on rod I) between the side bars of the shuttenframe,and constructed with an extension, b beyond their pivotal points, asshown. From the inner ends of the slats I project rods b bent in crankform, as shown. These rods are secured to the extension V, as shown, andtheir pins or wrists b are journaled in suit able openings formed in avertical bar, 0, which moves up and down along the inner side bar of theshutter-frame. This bar is braced and guided by lugs B, secured 011 theinner face of the side bar of the shutter-frame, as most clearly shownin Fig. 2. It will be seen that as this bar is adjusted up and down theslats will be tilted, as indicated in dotted lines. On the inner edge ofthis movable bar I form a slot, 0, to receive the stud on the operatingdevices hereinafter described.

The lever D is pivoted at its forward end, d, and works in a suitableopening in rear of the rails a a a", as shown, and is provided at itsopposite end with a handle, d,'also a detent, d supported by spring (1and engaging a segmentrack, d", secured on the windowframe, so that thelever may be held at any suitable point desired. A strap or bar, D, isswiveled to and depends from the lever D, between the rails to a. Theserails serve to retain the strap in its vertical position. The lower endof this strap is bent out slightly, as shown in Fig. 4, so as to escapethe rail a, and

a short stem, D is secured to this end of the strap and extends forwardtherefrom, and is provided with stud D which enters the slot in the rearedge of the movable bar, as shown in Fig. 3. By this means it will beseen the action of the lever serves to operate the slats when the blindsare closed, yet the connection is such that the operating mechanism andmovable bar are readily detached from each other when the shutters areopened.

It will be seen that I employ a lever, D, for each shutter, and that theshutters are operated independently of each other.

It is obvious that the movable bar might be operated in various ways;but I prefer the means shown and before described, as thereby simple andconvenient devices are provided which are efficient, and do notinterfere with the operation of the window-sashes.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, 1s

1. In a blind-slat operator, the combination, with the shutter havingpivoted slats and movable bar arranged alongside the shutter andconnected with the slats, as described, of the lever pivoted to thewindow-framing, and having its outer end connected with the movable barand its inner end engaging a suitable rack, whereby the slats may beheldat any desired angle, substantially as described, and for the purposesspecified.

2. The blind-slat-operating device, substantially as described andshown, composed of the pivoted slats having extensions beyond theirpivots, the vertically-movable bar provided on its inner edge with aslot, as de- In testimonywvhereof Iaffix my signature in scribed,crank-rods connecting the slats and presence of two Witnesses. movablebar, the pivoted lever provided with depending strap or bar having astud project- WILLIAM H. KEERAN. ed into the slot in the movable bar,the rack,

and a suitable detent secured to the lever and \Vitnesses: engaging therack, all as and for the purposes J. W. BOYLE,

specified. ISAAC HOGAN.

